Thermostat for electric heat-regulating systems.



J. G. KERSTETER.

THERMOSTAT FOR ELECTRIC HEAT REGULATING- SYSTEMS.

APPUGATION FILED MAY 25, 1911.

OFFICE.

JOEL c. KERSTETER. oF MINNEAPOLIS. MINNESOTA. AssIGNoR To ELECTRIC HEAT REGULATOR COMPANY. or MINNEAPOLIS. MINNESOTA. A CORPnRAfrIoN op MIN-' NESQTA.

THERMOSTAT FOR- ELECTRIC HEAT-REGULATING SYSTEM.C4

|.()' 2h5) Speeftcatinn ot' Leiters Patent. Pnl unipd )[313 1 fl.b 1912, Application filed May 25. 19,11. Serial No. 629.367.

'lb l/ ulmm i( muy eri/merli' liwt pim nr www# are inmintetl in these 5 lle it lcnimn that l. .lmrA l\'l:|:. '|`|-;ri-;n. if i :trimami engage a ehieh i) if th(I eirrnlar .\iinne.tpoli.-.` llrnnepin enmity` linnesuta. type. pret'erahlr meh is n nall`v nsril for have invenleil 'eitain new anti nset'lll ltn- A'tlieriniaaalie timers. The arm:`l t3 :intl i are llrmements in Thermostats t'nr lfleetrir. y ntlieientlt' tlexihle tu alhlw the removal of l[eat-Heglilating' .\'.\'.-te|nl nl' \\'hirhth t'nlj the rhwlt' t'rian i|.\` attaifhnient tu the ther- 60 l i\\in ;r is a peeitiratinn. innstat withnnt :nljmtnigr the sieren' pivots .\l`\' invention relates'partirnhnllv to the h. .v\ lliiling' pin It) is n'itmnteil in one of timing ile\'iee.\'|,'fm therinnatats by means nl' .\ail :mnhA in puitinn tu rnntaet with the whieh the thermnstat |na he ax|t mn:1tieall \Y wall 11| the ehwk :nul i lrie'hlingly hehl h v switeheil. uenerallv t'rmn a hm' to a higher a Apringr ll. The inner enll nl'4 the pin iS 65 temperature ihn-in;r the earl'trmm-ning haar# preterahly l'nlnuleil as #hewn in Fig. 2, and Atn open tht` ilratts :tml latari the tire. is :zilaptell tn .\lip inte a reve.y (ir depression llnprimary nhjeet' of nl vpresent inventtl p rnviileil in tht wall nl' the rhieli. heilig tinn is to prmiile`an inlprm'ed meanl fur Ytllltilg'l' lltltl therein h v'lhe spring l1.

mounting;r th'e vloek attaehinent nr timer tn i The elnrh is thm hehl seenrehv against 70` the end that it is reaililv areessihlegt'ar 'inlllll'lillatlll'r tilting. hln' when grasped hy the ing nml Netting pnrpmies. hantl ran he-ea il pree l tn the right or further nhjeet' is tn provide a uppnrtthe lel't. tu lisenfgage the'pin from its seat ing;r means fm the elm-l(` which will bp Simand .\'.\\tn thiI elnek un its pirnts until the plc :intl inexpensive in runstrnetimt and neat'f llal'h is expnsetl nml awessilile-- 7o and ornamental in appearanee. y \ll im" l`-.- ""llltlfttl "I. Th illilllll M t' invention runs-ists generally in pirutnleehanisni. has an antifrietinn roller i3 in ing the timer un the t'rnntnf the thermostat 1 pusitmn tu engage a lever t4 that is pirnt'ed A)5 in allnw itxl position tn he reverseel and ex- 5 Il( 15ml llt [llllt` 5f lllll 1S vmlnrttell with a pose 'the windingvaml setting ineehanisni. lll' 1li flll'tllh'll lllt'll U10- lltllll-*llllg {llttlll- 30 ln. the al'imnpan vingj ilran'ingl thrilling tnsnl oi the thernmsta. nu( showin is ennpart et' thi speeiliratiun. Figure l is a 'front l flnllltl. rllle relu-tsr. nl' the arm l when .HMV f n 11m-mmm( with my mwmm nl)- the alarm is nQet ntll will ranse thenwvenient plied thereto. Fig. 2 is a .wille View nl til@ I' nl' the .arnt inta engagement with the levez' ln thi` drawing. 2 l'epre.\'ent.--l thc therinn- ,t llglit 01" tu the left and a .flight pressure on tat prnper, haring` :in :nlinsting mechanism une 'stile will -serre to tllsengaga it frnm I hy means nl nhieh thtl relative'position 'ilicpl'l! `itl :intl allow it t0 swing 0h S 90 nt the-thermostat har and the emitaet paint PVUS lllllil till bark nl the riveli ia exposed irhangeil taetl'et-t a ehisingnt' the eirrn'it t0 \,'l ltlll where its winding and setting if n lin-da(t-l-mmql lmlmqmuq, ml n nwehanimn van he easily rea'rhed anilinanip- 40 shifting of the ilanipers nl' the heatingr aprnustats fur antunmtieallv -ah'il'tin.;ir the :nl-

jiistinp,r mechanism at a'preileterlnined time, hutit has eith'er heen 'neven-sary tnfrelnmc l l l l nlateih lt ixnnt neeissanv tn remove the j ehiek and there is` therefore, n0 danger of 95 t'ilrnpping anti breakingr it and there are no l\'\\'in uing parts whieh might'. cattli 0n the vhit'hing: and he broken or torn otgMThe ap-' -pliratinn to a thermostat. already installed wintlinlgr xr-setting-plirpeses nr elae it has Sitllllllt'ity 0f N tllvlt'l, HVUlVUlg, aS it been nmiinteil in nella manner on the ther-v Klug-h', but few' parta` of sim Ilefonstruction," 'lnnstat that ari-ess tu the winding anl set- -insures the uperative'nesS 0j the attain-.humm 'ting leviers is necessarily a l \\"aril antLinat tilltiinesimd renders uncertainty of operunnsjenient, lu uh'viate thin ohja-limi l' ation praetieally iinpostziblal 105 )rmiil'e a plate -'seeureil tn'the .thernmstatl elanu as tn y n1\eniion:' I luisa-hy any suitable means and ha ying unt- Y l. The volllbl'natlon with a thermostnand w'ardly -t-nrnetl arms 'or stamlards t3 an@ -itsi adj listing lniwlnuiism, of a timer, mecha,-y

lthe vloek' entirely from the thermostat fm; i van he easily pertarmeil and il); extreme 10pmism arfhmid hy 1h@ iimmy i'ui' shfiing .Suhl adjusting mechanism, uml muuns fm' pivot- .21115r suppml'ing (hv Timm' :1L pninls adjacent the front. fue@ ihm-cnf, und in a'plzmcpagging centrally fluff-ugh thv timer.

2. The (.:mnbnation wills :L thermostat und its adjusting i'neclmnism. of :1 timex', mechanism actuated by the timer for shifting .Quid 1 adjnstmg nwffhamsm, und mvzxns for pivot` ally supporting the limer nl: points adjacent 

